Portable circuit tester



FIG. 1 is a front and top-right perspective view of a portable circuit tester showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof.

The lead wires in FIGS. 2-4 and 6 have been omitted for ease of illustration. 

The ornamental design for a portable circuit tester, as shown and described. 